Acquisition of 3D temperature distributions in fluid flow using proton resonance frequency thermometry
Acquisition of 3D temperature distributions in fluid flow using proton resonance frequency thermometry
复制标题
使用质子共振频率测温法采集流体流动中的 3D 温度分布
DOI：
10.1002/mrm.25874
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发表时间：
2016
影响因子：
3.3
通讯作者：
R. Simpson
中科院分区：
文献类型：
--
作者：
W. Buchenberg;F. Wassermann;S. Grundmann;B. Jung;R. Simpson
目的建立了质子共振频率测温法监测组织内微小温度变化的方法。将该技术应用于流体流动中复杂温度分布的测量是工程界非常感兴趣的，也可能具有医学应用。这项工作提出了一种实验方法，可以可靠地测量流体流动中的三维（3D）温度场，使用质子共振频率测温。方法采用速度补偿三维梯度回波序列。柔性泵送系统连接到一个MR兼容双管换热器。两个独立流动回路的温度可以调节，以产生流体内部不同的三维空间温度分布。在均匀加热的流动中使用MR兼容温度探头进行验证。在温度分布空间变化的情况下，对热电偶进行了比较研究。结果在均匀加热的流动中，质子共振频率测温可以精确地测量到0.5 K以内的温度变化，而磁共振测得的温度空间变化与热电偶点向测量的温度变化具有很好的定性一致性。结论质子共振频率测温可用于各种复杂的流动情况，解决医学和工程问题。这项工作使人们有可能获得对基本传热现象的新见解。中华医学杂志（英文版），2016。©2015 Wiley期刊公司
PurposeProton resonance frequency thermometry is well established for monitoring small temperature changes in tissue. Application of the technique to the measurement of complex temperature distributions within fluid flow is of great interest to the engineering community and could also have medical applications. This work presents an experimental approach to reliably measure three‐dimensional (3D) temperature fields in fluid flow using proton resonance frequency thermometry.MethodsA velocity‐compensated three‐dimensional gradient echo sequence was used. A flexible pumping system was attached to an MR compatible double pipe heat exchanger. The temperature of two separate flow circuits could be adjusted to produce various three‐dimensional spatial temperature distributions within the fluid flow. Validation was performed using MR compatible temperature probes in a uniformly heated flow. A comparative study was conducted with thermocouples in the presence of a spatially varying temperature distribution.ResultsIn uniformly heated flow, temperature changes were accurately measured to within 0.5 K using proton resonance frequency thermometry, while spatially varying temperature changes measured with MR showed good qualitative agreement with pointwise measurements using thermocouples.ConclusionProton resonance frequency thermometry can be used in a variety of complex flow situations to address medical as well as engineering questions. This work makes it possible to gain new insights into fundamental heat transfer phenomena. Magn Reson Med 76:145–155, 2016. © 2015 Wiley Periodicals, Inc.
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影响因子：
--
作者：
A. Sinha;J. C. Misra
通讯作者：
A. Sinha;J. C. Misra
DOI：
10.1007/978-3-319-65924-4_9
发表时间：
2018-02
期刊：
--
影响因子：
--
作者：
Sebastian Schmitter;Susanne Schnell
通讯作者：
Sebastian Schmitter;Susanne Schnell
DOI：
10.1016/j.icheatmasstransfer.2004.08.028
发表时间：
2005-07-01
影响因子：
7
作者：
Ogulu, A;Abbey, TM
通讯作者：
Abbey, TM
影响因子：
3.3
作者：
Buchenberg, Waltraud B.;Dadakova, Tetiana;Jung, Bernd
通讯作者：
Jung, Bernd
影响因子：
3.5
作者：
Wlodarczyk, W;Hentschel, M;Felix, R
通讯作者：
Felix, R